SLAB (V4) Assembly Guide 

Elastic knot tying guide: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-AM_mH_ZwnKU.html

I really like the fact that the SLAB used only one kind of screw

I remember I commented on another video of the slab about how I was disappointed I didn't have a 3d printer and thus couldn't make this awesome blaster. I can now! after getting one I can finally print this. Thank you sillybutts for designing a super cool blaster. I love lever actions.

Thanks for creating this. I worked it out myself with your parts. It's a testament to the fitment and build of the parts that I can backwards engineer the hardware needed to put this together successfully. The only question I had was the gap between the priming bars, so cut some aluminum tubing to give structure between the bars and the pins. This was a work of art and had the best time building it. The prime is so fluid like this. Well done.

Just assembled my first of two, printed all on my Prusa Mini +. Used the Out Of Darts kit with the 180 spring. This is my first time doing anything like this, and the SLAB was working beautifully right from assembly. Maybe I need to spend more time around nerf people, maybe I'm just too used to Hasbro's fare, I was expecting it to have a punch but holy guacamole this thing is terrifying, I'd feel guilty pointing it at another person! Side note, I prefer the look of the sights with the sloped sides facing the user.

Just finished mine, turned out amazing with an OOD hardware kit. Thanks for this!

Your engineering in this design is incredible. I bought the kit and will start printing soon here. Definitely will send you some beer money for this one!

Just built mine thanks a head this guide was a lifeline not catching yet but I'll come back and go again to fix that

Just got one of these built. It was super easy to follow your video and the blaster came out awesome. Looking forward to you upcoming projects.

Friggin' Amazing!!! Just assembled mine and works great.

Fantastic job on this blaster! I'm in the middle of printing out all the pieces and they look great so far! I like the sights you included but just as a suggestion, if you were able to expose the top of the clear filament, this allow more light to hit the clear filament making the dots much brighter.

Thanks for posting very nice detailed instructions.

so i have a really hard time tying the elastic. what i found works, is print a bunch of extra "printed cotter pins" you can use these to add tension to a loose elastic band if you have trouble like I do.

Just built my slab and I already love it! Thank you soo much for designing an awesome blaster for the hobby! I was wondering is there a particular reason why the trigger block and pivot are not printed as one solid piece?

Just finished building mine. Lol. Great video!

Didn't know David Cross made the SLAB.

This is an awesome project. Thanks for sharing the files and assembly instructions. I have looked through the assembly file, and there are 2 different lengths of plunger rods (~6 in & ~5 in). When would I use the 5" plunger rod vs the 6" plunger rod?

Put this all together today and it works but the power was pretty low, maybe only throwing 15 ft, So I noticed that even when dry firing the ram wouldn't thump the end of the turn around, it was kinda slow, which made me think there was a friction problem, the ram is a little loose but I think it gets a good seal with the oring, so I tried some silicon lube, it worked and didn't sometimes it punch really hard and other times now the darts would fall out the barrel. though maybe it wasn't keeping the pressure due it feeling just a smidge undersize? Tried putting a 2nd o-ring on it and then there was too much friction, it barely moved. Cleaned off all the grease and went back to 1 dry o-ring and I'm still getting inconstant power. my guess is when the plunger rod leaves the catch it's kinda free floating and sometimes the ram get's a little twisted causing extra friction and robbing power. Any recommendations besides try printing the ram at maybe 101% size or something?

Looked all over the github. Couldn't find the one piece plunger head. Is it there, or am I blind? Does the newest magwell and redirect piece screw together with two screws on the bottom of the turnout, or the top?

Doubling up the orings on my ram caused it to not fully seat and force the turnaround upwards which made the glue on the tube fail, I removed a oring and reglued the tube and all seems well. The tube was fairly short compared to say a talon claw or caliburn, would the slab benefit at all from a slightly longer tube

Howdy, buying parts piecemeal because i am in EU and just wondering, does the thread pitch of the screws used everywhere matter? Or does any countersunk m3x10mm screw work?

Just started assembly on my kit, are we intended to just brute-force the screws into the holes? I didn't hear any mention of tapping holes, but I can def hear some plastic stressing when screwing directly into it.

Any issues with the priming bars being printed? Do they flex? Any advantage to getting them made out of metal?

Hi Silly, maybe I just missed it but is there a preferred layer height for printing each of the parts?

Do you need the elastic in the trigger because when I assembled mine I cut the cord to short but I found that the elastic from the catch worked well on its own

I just finished building last night, fired a few shots, went to go chronograph and for some reason the catch release isn't being activated by the trigger. The thing the threaded rod pushes into suddenly needs WAY more travel to release the catch. Any idea what's going on there?

When printing this blaster do you need supports?

Is there a file for priming bar spacers? I think it would help imo